Gendriver - generic middle layer device drives

Gendriver implements single-file device drivers on the middle layer, that is: it knows how to tell your display to draw pixels, but doesn't know how to program your i2c registers or how to render text. Less is more: implementing the middle layer only provides rare flexibility, see motivation.

Available under the 3-clause BSD license. Portable: Implemented in C99, zero external dependency beyond libc.

Downloads & contact

• VCS: svn://svn.repo.hu/gendriver/trunk
• working examples: svn://svn.repo.hu/gendriver/work
• Source release tarballs
• Contact the maintainer

Driver state

Flags:

• S: stateless; the driver doesn't maintain persistent device states so a single instance of the driver can be used with multiple devices if the low level driver splits the stream (the hardware still has internal states usually)
• r: based on render callbacks instead of a frame buffer
• w: based on window buffers

Display